Boltless plow-point.



G. W. MOWANE.

BOLTLESS PLOW POINT. APPLICATION FILED'SEPT. 30, 19 12.

1,076,440; Patented Oct. 21, 1913.

2 SHEET8SHEET l.

ATTORN EY G. W. lVIo-WANE.

BOLTLESS PLOW POINT.

APPLICATION FILED SEPT. 30, 1912.

1,076,440. Patented Oct. 21, 1913.

2 SHEETSSHEET 2.

WITNESSES ATTORNEY COLUMBIA PLANOGRAPH co, WASHINGTON. n, C

UNITED STATES PATENT OFFIQE.

CHARLES WILLIAM MCWANE, OF LYNCHBURG, VIRGINIA, ASSIGNOR T0 LYNGHBURG FOUNDRY COMPANY, OF LYNCHBURG, VIRGINIA, A CORPORATION OF VIRGINIA.

BOLTLESS PLOW-POINT.

Specification of Letters Patent.

Patented Oct. 21, 1913.

Application filed September 30, 1912. Serial No. 723,178.

To all whom it may concern Be it known that 1, CHARLES WV. Mo- Venn, a citizen of the United States, residing at Lynchburg, in the county of Campbell and State of Virginia, have invented :a i new and useful Boltless Plow Point, ofi which the following is a specification.

The invention relates to a plow point.

The object of the present invention is to? improve the construction of plow points, and to provide a simple, strong and efficient p'l'ow point of inexpensive construction, designed principally for use in connection with the boltless mold'board and landside plow,shown and described in an application filed me; June .5, 1912, Serial No. 701,849, in whichi plow point the use of a bolt hole will be entirely eliminated.

A further object of the invention is to provide a plow point of this character wit-h fastening means contained within :the limits of the frog or foot of the plow standard and arranged to be protected by the same: and adapted to permit the plow point to be readily applied to and removed from the? standard Without removing the fasteningi means from the standard.

With these and other objects in View, the invention consists in the construction and? novel combination of parts hereinafter fully i described, illustrated in the accompanying drawings, and pointed out in the claims, hereto appended; it being understood thatff various changes in the form, proportion, j size and minor details of -CO11St1'llCtl0Il, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the; invention. 1

In the drawings :Fi=g-ure 1 is a perspective View of a plow point, constructed in ac- 1 cordance with this invention and shown applied to a standard. Fig. 2 is a perspective view of the standard, the plow point being removed. Fig. 3 is a similar view of the? plow point, showing the-same detached from the standard. Fig. 4 is a reverse plan view of the plow point and the standard. Fig. 5 is a longitudinal sectional view on the line '5-5 of Fig. Fig. 6 is a transverse seci tional view, taken substantially on the line, 66 of Fig. 5.

Like numerals of reference -designa-tecorl responding parts in all the figures of the;

drawings.

3 the frog or foot.

In the accompanying drawings in which is illustrated the preferred embodiment of the lnvention, 1 designates a plow point of the usual configuration consisting of .a blade or wing '2, a nose '2 and a shin 3, and pro vlded at the rear .or lower face with angularly related flanges 4 .and 5., extending longitudinally of the blade and the shin of the plow point and connected at their front ends by a wall or shoulder 6, which is adapted to fit against the blunt point or shoulder 7 of the frog or foot 8 of a standard ,9. The shoulder 6 of the plow point is provided at the rear end of the nose, and the two flanges 4 and -5 diverge from said shoulder. The frog or foot 8 .of the standaid, as explained in the aforesaid applicatlon, extends laterally from the inner side or face of the standard and has a concave front face, which merges into and forms a continuation of the front face of the upper portion .of the standard. The rib 4 extends rearwardly along the blade of the plow point from the wall or shoulder 6, and the flange extends upwardly along the shin 3. These flanges 4 and 5 form a recess 10 to i receive the frog .0]: foot of the standard, and

they are also undercut at 11 and 12 to engage with the :angularly related side edges 13 and 14 of the frog or foot of the standard. The lower edge 13 and the la-ndside edge 14 of "the frog or foot of the standard are beveled at the lower face of the same, the front :or landside edge 14 of the upper portion of the standard is correspondingly beveled to fit the upper portion of the shin of the p'low point. The recess 10 tapers forwardly and "when the tapered portion of 5 the standard is fitted in the recess 10 with passes through an inclined opening 1 7 and extends into 'a recess 18 in the upper face of The frog or foot of the standard is recessed at the back at 19 to form a slightly inclined rear face 20 to form a bearing surface for the bolt head, which, by being located above the lower face 16 of the frog or foot, is arranged outof the way and thereby protected from contact with stones and other obstructions.

The plow point covers the recess 18 and the threaded portion of the bolt is arranged within the said recess and receives a nut '21, which engages with a lug 22 formed integral with the plow point and depending from the lower face thereof adjacent to the rear edge of the blade 2. Thenut, which is arranged at a slight inclination, is loosely received within the recess 18 and is held against rotary movement by the side walls thereof, and the lug 22 of the point, which is provided at the bottom or lower end with a groove 28 to straddle or receive the bolt, has an inclined front face 24:, which is engaged by the nut, whereby the nut and the lug are interlocked and the plow point is securely held against forward movement on the standard and is effectually prevented from becoming accidentally disengaged from the same. The bottom 18 of the recess 18 is inclined and extends upwardly and rearwardly, and when the bolt is rotated to tighten it, the nut is drawn upwardly along the incline and carried into engagement with the inclined front face 24 of the depending lug and the plow point may be drawn tightly into engagement with the standard by the bolt. The arrangement of the nut and the threaded portion within the recess 18 protects the said parts both from the weather and from contact with the soil. Although the nut of the bolt is shown engaged with the lug, yet it will be obvious that the parts may be reversed so that the head of the bolt or other fastening device will engage with the lug of the plow point. Any other suitable means may be employed for retaining the imperforate plow point in its interlocked relation with the standard.

In order to detach the plow point, it simply necessary to apply a wrench to the bolt head to turn the bolt through the nut, (the latter being prevented from rotating by the walls of the recess 18), a sufiicient distance to loosen the engagement of the nut with the lug 22 of the point, whereupon the latter may be separated from the standard. It is not necessary to entirely withdraw the bolt from the nut to accomplish this result, because of which fact the bolt and nut can never become misplaced or lost.

By the term standard in this specification and in the claims I wish to cover any form of support used by manufacturers to connect the plow point, moldboard and land side to the beam of the plow, unless the claims make a more specific designation of the standard.

By the term point I wish to embrace any form of cutting point or share, either with or without the shin, unless the claims specifically include the latter;

l/Vhat is claimed is i 1. In a plow of the class described, the combination with a standard having a tapered foot, said foot having its lower edge and its landside edge both beveled, of an imperforate plow point consisting of a nose, blade and shin, said bladeand shin being each provided along the inner face ofthe same with a longitudinal flange, said flanges being angnlarly related to each other and defining a tapered recess to receive the foot of the standard, said flangesbeing undercut and engaging with the said beveled edges of said foot, and fastening means for re taining the plow point on the standard without perforating the face of the point.

2. In a plow of the class described, the combination with a standard having a tapered foot, said foot having its lower edge and its landside edge both beveled, and said beveled edges leading from a shoulder located at the extreme forward end of the standard, of an imperforate plow point consisting of a nose, a blade and a shin, said blade and said shin being each provided along the inner face of the same with a longitudinal flange, said flanges being angularly related to each other and diverging from a shoulder located at the rear end of the nose and defining a tapered recess to receive the foot of the standard, said flanges being undercut and engaging with the said beveled edges of the foot, and fastening means for retaining the plow point on the standard without perforating the face of the point.

8. In a plow of the class described, the combination with a standard having a tapered foot, said foot having its lower edge and its landside edge both beveled, and said beveled edges leading from a shoulder at the extreme forward end of the standard, the landside beveled edge extending to the top of the standard, of an imperforate plow point consisting of a nose, a blade and a shin,

said blade and said shin being each provided along the inner face of the same with a longitudinal flange, said flanges. being angularly related to each other and diverging from a shoulder located at the rear end of the nose and defining a tapered recess to receive the foot of the standard, said flanges being undercut and engaging with the beveled edges of the foot of the standard, and fastening means for retaining the plow point on the standard without perforating the face of the point, said fastening means engaging with the underside of the plow point in rear of'the shoulder and within the said tapered recess. 7

1. In a plow of the class described, the

combination with a standard having a tapered foot, said foot having its lower edge and its landside edge both beveled, and said landside beveled edge extending to the top of the standard, of an imperforate plow point consisting of a nose, a blade and a shin, said blade and said shin being each provided. along the inner face of the same with a longitudinal flange, said flanges being angularly related to each other and defining tapered recess to receive the foot of the standard with the flanges undercut and engaging with the beveled edges thereof, the flange on the inner face of the shin extending throughout the length thereof, and fastening means for retaining the plow point on the standard without perforating the face of the point.

5. In a plow of the class described, the combination with a standard having a tapered foot, of an imperforate plow point including a blade. and a shin and provided at its lower face with undercut ribs extending along the blade and the shin and forming a recess to receive the foot of the standard and interlocked with the side edges thereof, and a fastening device carried by the foot and connected with the plow point at the lower face thereof.

(3. In a plow of the class described, the combination with a standard having a taper-ed foot, of an imperforatc plow point including a blade and a shin and provided at its lower face with undercut ribs extending along the blade and the shin and forming a recess to receive the foot of the standard and interlocked with the side edges thereof, and a bolt carried by and piercing the foot and leading to the upper side of the foot and engaged with the plow pointat the lower face thereof within the limits of the recess.

7. In a plow of the class described, the combination with a standard having a foot,

said foot having a recess opening out at the upper face thereof, of an imperforate plow point interlocked with the standard and provided at its lower face with a depending lug having an inclined front face, said lug fitting within the said recess and a fastening device carried by the foot and including a bolt nut and arranged at an inclination having a portion arranged within said recess and engaging with the inclined front face of the lug to retain the plow point on the standard.

8. In a plow of the class described, the combination with a standard having a foot and provided in the upper face thereof with a recess, of an imperforate plow point in terlocked with the foot and covering the recess, and a fastening device carried by the foot and having means located within the said recess and connected with the plow point at the lower face thereof for retaining the plow point in its interlocked relation with the standard.

9. In a plow of the class described, the combination with a standard having a foot and provided in the upper face thereof with a recess, of an impcrforate plow point interlocked with the foot and covering the recess and provided at its lower face with a depending lug projecting into the recess, and a fastening device carried by the foot and having means located within the recess and engaging the said lug for retaining the plow point in its interlocked relation with the standard.

10. In a plow of the class described, the combination of a standard having a foot and provided in the upper face thereof with a recess, said foot having an opening extending rearwardly from the recess, a plow point having a lug extending into the recess, and a bolt extending through said opening into the recess and having means engaging with the lug for maintaining the plow point on the standard.

11. In a plow of the class described, the combination of a standard having a foot and provided in the upper face thereof with a recess, said foot having an opening extending rearwardly from the recess, a plow point having a lug extending into the recess, a nut located within the recess and engaging the front face of the lug, and a bolt extending through the said opening and having its threaded portion arranged in the recess and receiving the nut.

12. In a plow of the class described, the combination of a standard having a foot provided in its upper face with a recess and recessed at its rear portion to form an inclined rear face, said foot being also pro vided with an inclined opening extending from the said rear face to the recess, a plow point provided with a lug extending into the recess and having an inclined front face, a nut located within the recess and arranged at an inclination to engage the inclined front face of the lug, and an inclined bolt extending through the opening with its head fitted against the rear face of the foot and its threaded portion extending into the recess and receiving the nut.

13. In a plow of the class described, the combination of a standard having a foot, a fastening device carried by the foot and consisting of a bolt having a nut, and a plow point provided with a depending lug straddling the bolt and engaged by the said fastening device, which retains the plow point in interlocked relation with the foot.

14;. In a plow of the class described, the combination of a standard having a foot provided in its upper face with a recess, a plow point having a lug extending into the recess and provided at its lower end with a groove, and a fastening device carried by the foot of the standard and engaging the lug and consisting of a nut and a bolt fitting in the groove of the lug.

15. In a plow of the class described, the combination of a standard having a foot provided in its upper face with a recess, the latter having an upwardly and rearwardly inclined bottom, a plow point having a lug extending into the recess, and a fastening device including a bolt piercing the foot and extending to the recess, and a nut arranged on the threaded portion of the bolt, said fastening device when tightened being carried upwardly into engagement with the said lug by the inclined bottom of the recess.

16. In a plow of the class described, the combination with a standard having a recess at its lower end, an imperfo-rate plow point covering the said recess and having a de pending lug projecting within the same, and a fastening device including a bolt and nut retained in said recess and engaging with said lug for holding the plow point to the standard.

17. In a plow of the class described, the combination with a standard having a recess at its lower end, said recess having a rear wardly inclined bottom, of an imperforate plow point covering the said recess and having a depending lug projecting within the same, and a fastening device including a bolt and nut retained in said recess and engaging with said lug for holding the plow point to the standard, said fastening device when tightened being carried upwardly into engagement with the lug by the inclined bottom of the recess.

18. In a plow of the class described, the combination with a standard having a recess at its lower end, of a bolt piercing the standard and having its threaded end projecting within the recess, a nut fitted on the threaded end of the bolt and held from turning by the said recess, and an imperforate plow point covering the said recess and having a depending lug projecting within the same to he engaged by the nut of the bolt.

19. In a plow of the class described, the combination with a standard having a recess in its lower end, of an iinperforate plow point covering the said recess and having a depending lug projecting within the same, and a fastening device including a bolt and nut, one end of the bolt extending within the recess and the other end projecting through the wall of the recess and operable outside of the same, said recess being of a sufficient depth to receive the nut engaged by the bolt, said nut being brought into engagement with the lug to hold the plow point to the standard.

20. In a plow of the class described, the combination with a standard having a recess at its lower end, of an imperforate plow point covering the said recess and having a depending lug projecting within the same, and a fastening device including a bolt having a head at one end and a nut at the other, one of said parts being retained in said recess and adapted to engage with the lug for holding the plow point to the standard.

21. In a plow of the class described, the combination with a standard having a recess at its lower end, said recess having its bottom rearwardly inclined, of an iinperforate plowvpoint covering the said recess and having a depending lug projecting within the same, the front face of said lug being inclined, and a fastening device including a bolt having a head at one end and a nut at the other, one of the parts of said fastening device being retained in said recess and engaging the bottom wall thereof so as to force said part into contact with the inclined front face of the lug.

22. In a plow of the class described, the combination with a standard having a recess at its lower end, of an imperforate plow point covering the said recess and having a depending lug projecting within the same, and a fastening device including a bolt having a head at one end and a nut at the other, one of the said parts of thefastening device being Wholly retained in the said recess and adapted to engage the lug for holding the plow point to the standard.

23. In a plow of the class described, the combination with a standard having a recess at its lower end, of an imperforate plow point provided with a lug depending within the recess, and a fastening device including a bolt for retaining the lug in said recessl 2a. In a plow of the class described, the combination with a standard, of a plow point resting upon said standard, and a longitudinally disposed bolt piercing the lower end of the standard and having one end exposed at the rear side of the standard and the other end constructed to hold the plow point to the standard, whereby the point may be removed from the standard without removing the bolt therefrom. In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CHARLES WILLIAM MoWANE. \Vitnesses:

F. B. DAVIS, V. W. COFFEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

